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Communicating Quality of Experience data for the development of multimedia services
Peter Brooks, Teolys (F)Bjørn Hestnes, Telenor R&D (N)Svein Heiestad, Telenor R&D (N)Carl Aaby, TANDBERG (N)
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•Download•Push•TV Anytime
Non Real-TimeNon Real-Time
• Live streaming• Almost live TV
• VoiceMail• VideoMail• E-Mail• Web surfing
Real-TimeReal-Time
• Multimedia Conf• Videotelephony• Data conferencing• Avatar-telephony• Audio telephony• Real-time text
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Real-Time Person-to-Person CommunicationReal-Time Person-to-Person Communication
• Multimedia• Video• Data• Avatar• Audio• Text
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Real-Time Person-to-Person CommunicationReal-Time Person-to-Person Communication
• Multimedia• Video• Data• Avatar• Audio• Text
Input-Output devices
End-to-end components
EncodersEncoders
keyboardkeyboard
microphonemicrophone
cameracamera
screenscreen
keyboardkeyboard
microphonemicrophone
cameracamera
screenscreen
RoutersRouters
DecodersDecoders
PANsPANs Wireless Network AccessWireless Network Access
Tunnels, Firewalls, EncryptionTunnels, Firewalls, Encryption
WANsWANs
ISPsISPsProtocols• TCP-IP• UDP-IP
Protocols• TCP-IP• UDP-IP
Input-Output devices
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Making informed decisions…• Requirements for QoE data• Making QoE data available within industry
Based on case studies with• Network operators• Equipment manufacturers• Service providers
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Requirements for QoE data
• Provide guidelines on key topics
• Provide tutorials
• Link QoS and QoE variables
• Provide QoE data for different guideline
users
• Provide information about user behaviour
that is feasible to apply
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Requirements for QoE data
• Provide guidelines on key topics
• Provide tutorials
• Link QoS and QoE variables
• Provide QoE data for different guideline
users
• Provide information about user behaviour
that is feasible to apply
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The main topics of concern• User choice– Reliability of service– Duration of call– Cost-benefit
• User appearance– Head / Upper body– Eye contact– Perception of other
• User groups– Business persons– Deaf persons– Blind persons
• Purpose of communication
– Negotiation– Problem solving– Showing surroundings
• Group communication– Multi-point– Window configuration– Human support
• Technical parameters– Delay– Packet loss– Resolution
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Requirements for QoE data
• Provide guidelines on key topics
• Provide tutorials
• Link QoS and QoE variables
• Provide QoE data for different guideline
users
• Provide information about user behaviour
that is feasible to apply
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Key concepts & lessons
•Packet loss• Jitter•Lip-synchrony / asynchrony•Frame-rate / resolution•Reliability of service•Multi-point social presence•Heterogeneous
transcoding
•User communication modes•User task types• Influence of participant
status•Configurations for blind
persons•Configurations for deaf
persons•Quality of Experience
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Requirements for QoE data
• Provide guidelines on key topics
• Provide tutorials
• Link QoS and QoE variables
• Provide QoE data for different guideline
users
• Provide information about user behaviour
that is feasible to apply
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Intermediate Guideline Format
IF Communication SituationUSING Service PrescriptionWITH Technical ParametersTHEN Usage Outcome
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Requirements for QoE data
• Provide guidelines on key topics
• Provide tutorials
• Link QoS and QoE variables
• Provide QoE data for different guideline
users
• Provide information about user behaviour
that is feasible to apply
![Page 14: Communicating Quality of Experience data for the development of multimedia services](https://reader036.vdocuments.site/reader036/viewer/2022070412/56814bb9550346895db889c9/html5/thumbnails/14.jpg)
Who would use QoE data?
• Strategic network planning• Sales• Marketing• System integration• Network testing• Development engineering• Technical research• HF research
Network operator• Sales• Marketing• Development engineering• Customer support• Technical research• HF research
Equipment manufacturer
• Service creation• Service host• Service operator• Service support • Sales• System integration• Terminal testing
Service provider
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Base knowledge
Test result #1 Test result #2 Test result #n
IF ----------USING ----------WITH ---------lTHEN ----------
Guideline #1Guideline #1 Guideline #2Guideline #2GuidelinesGuidelines
IntermediateGuidelines
IntermediateGuidelines
Base Knowledge Units
Base Knowledge Units
IF ----------USING ----------WITH ---------lTHEN ----------
IF ----------USING ----------WITH ---------lTHEN ----------
Guideline #nGuideline #n
Abstracting test results
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Requirements for QoE data
• Provide guidelines on key topics
• Provide tutorials
• Link QoS and QoE variables
• Provide QoE data for different guideline
users
• Provide information about user behaviour
that is feasible to apply
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Example QoE measure
IF Communication SituationUSING Service PrescriptionWITH Technical Parameters
THEN Usage Outcome
• Prevents adequate communication• Is usable• Offers acceptable quality• Offers good quality• Offers very good quality
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Making QoE data available within industry
ETSI Guide
Web-based system
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Conclusions• Service developers want end-user data• Much data not available• Tutorial support required• Standardisation bodies well positioned to disseminate
QoE data– ETSI STF284
– http://portal.etsi.org/stfs/hf/STF284.asp
Please visit the web-based system & provide your feedback!
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Communicating Quality of Experience data for the development of multimedia services
Peter Brooks, Teolys (F)Bjørn Hestnes, Telenor R&D (N)Svein Heiestad, Telenor R&D (N)Carl Aaby, TANDBERG (N)